The Met opened its 2010-2011 season last night with a performance of Richard Wagner's elaborate "Das Rheingold." Celebrity attendees included Miranda Richardson, Patricia Clarkson, Vera Farmiga, and Kerry Washington, who chose a floor-trailing silk Marchesa gown for the event. With its lavender and vanilla swirls and hand-painted floral motif, the draped off-the-shoulder gown gracefully shined as our favorite romantic look of the evening.